No longer than one or two sentences. I think.
Answer:
True
Explanation:
True, the commas act like parentheses. So we could say "His doctor could not identify the problem."
As for the periods, capitalization, and layout, it is all correct.
Changes made for the sake of overall effects desired by dramatists.
Answer:
Gun control advocates concerned about high levels of gun violence in the United States look to restrictions on gun ownership as a way to stem the violence and say that increased gun ownership leads to higher levels of crime, and other negative outcomes.
Explanation: